alphabetical list of extensions

File extension .APP

File description

Files that have the APP file format are basically the executable programs that run on the Mac OS X platform. This file format is very much like the Windows EXE format, however, it is only used on the Mac systems instead of Windows based computers.

The Alphacam CAD/CAM computer aiding drafting application program also makes use of the APP file format. The CAD program is used for the Woodworking industry and is normally used in the manufacturing and designing of several furniture components. The APP file extension files that are used by this application is useful in storing the designs that are generated with the help of the program.

Description of the problem
If you have on your computer a .APP file that you cannot open, you are in exactly the same situation as thousands of other people who have similar problems with this or any other unknown file.

There may be several reasons why you cannot open the file with .APP extension. Directly on this website you can find a solution of the most common problem with the .APP file – that you do not have on your computer the appropriate program to open the file.
Solution
From the list below, select the appropriate program, install it and double click on the icon of a file that did not want to open - the problem with the .APP file extension should be solved. However, if this does not happen, go back to the website to learn about other possible causes of the error, which have been described at the bottom of the website.
Category
Executable Files
Developer
Apple
Popularity
StarStarStarStarStar
File name: Mac OS X Application
Programs that will open this file:
Mac OS
Mac OS
Mac OS X Mac OS X
Xcode Xcode
Category
Executable Files
Developer
N/A
Popularity
StarStarStar
File name: FoxPro Generated Application
Programs that will open this file:
Windows
Windows
Visual FoxPro Visual FoxPro
Category
Executable Files
Developer
Nokia
Popularity
StarStarStar
File name: Symbian OS Application
Programs that will open this file:
Windows
Windows
Nokia Carbide.c++ Nokia Carbide.c++
Nokia Symbian rcomp Nokia Symbian rcomp
Nokia WRT plug-ins Nokia WRT plug-ins
Runs on supported cell phones Runs on supported cell phones
Remember!
The .APP file extension can correspond to several not related file formats. If there is more than one file format with the .APP extension, you will probably find most of them at this website. Remember that you need to download a program to support a particular file type. So first look through the entire contents of the website to select a program to support just the file you have.

Other possible reasons why your .APP file does not want to open

In addition to the problem described above, i.e. the lack of the appropriate application to support the .APP file, there may be several reasons that cause problems with opening and operation of the data format:

1. Incorrect version of the installed application

A quite common problem is the lack of application in the appropriate version. Even if you have an application, with the help of which you should open the .APP file, you may have a problem with it because of its version. Perhaps in previous versions the application has not yet supported the .APP file, so download the update and check again.

2. Incorrect .APP file association with the program

If you have already installed the appropriate application, and it is the correct version, the file may not open correctly, because the operating system does not have information that this program supports the file. So you need to "show" which program the computer should use. To do this:

  • Right-click the .APP file
  • Go to the "Open with" - then "Choose default program ..."
  • Locate the appropriate application
  • Click "OK"

3. The file is corrupt

It also happens that the file you want to open is corrupt and therefore there is no such possibility. In this situation, you should find its different version, or ask a person from whom you got, to send it again.